note 51270 added to function.hexdec
| From: | zubfatal at osu1 dot php dot net | Date: | Fri, 25 Mar 2005 07:26:02 +0000 |
| Subject: | note 51270 added to function.hexdec | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-86933@lists.php.net to get a copy of this message | ||
A small 'convert color' class ..
<?php
/**
* Convert colors
*
* Usage:
* color::hex2rgb("FFFFFF")
* color::rgb2hex(array(171,37,37))
*
* @author Tim Johannessen <root@it.dk>
* @version 1.0.0
*/
class color {
/**
* Convert HEX colorcode to an array of colors.
*
* @author Tim Johannessen <admin@stillborn.dk>
* @return array Returns the array of colors as array(red,green,blue)
*/
function hex2rgb($hexVal = "") {
$hexVal = eregi_replace("[^a-zA-Z0-9]", "", $hexVal);
if (strlen($hexVal) != 6) { return "ERR: Incorrect colorcode."; }
$arrTmp = explode(" ", chunk_split($hexVal, 2, " "));
$arrTmp = array_map("hexdec", $arrTmp);
return array("red" => $arrTmp[0], "green" => $arrTmp[1],
"blue" => $arrTmp[2]);
}
/**
* Convert RGB colors to HEX colorcode
*
* @author Tim Johannessen <admin@stillborn.dk>
* @return hex Returns the converted colors as a 6 digit colorcode
*/
function rgb2hex($arrColors = null) {
if (!is_array($arrColors)) { return "ERR: Invalid input, expecting an array of
colors"; }
if (count($arrColors) < 3) { return "ERR: Invalid input, array too small (3)";
}
array_splice($arrColors, 3);
$arrColors = array_map("dechex", $arrColors);
return implode("", $arrColors);
}
}
?>
----
Manual Page -- http://www.php.net/manual/en/function.hexdec.php
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